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9/8 

56408015-02 

 

INDOOR UNIT 

 

MAXIMUM 

SPEED

 

SOUND PRESSURE 

LEVELS

 

dB(A)

 

NC

 

CX(E)A 30

 

55 

48 

CX(E)A 50

 

56 

50 

CX(E)A 70 

56 

49 

 

Sound Power Levels were obtained in full accordance with the direct method of BS EN ISO3174:2000. Levels are shown in dB 
with a standard reference of 1 pW. 
Sound Pressure Levels in dB(A) refer to semi-hemispherical radiation (wall or ceiling mounted) at a distance of 1.5m from the 
front of the unit, with the fan operating at full speed. 

 

OUTDOOR UNIT

 

 

MAXIMUM 

SPEED

 

SOUND PRESSURE 

LEVELS

 

dB(A)

 

NC

 

CKA 35

 

55 

44 

CKA 50

 

58 

44 

CKA 70 

58 

44 

 
Sound Power Levels were obtained in full accordance with the direct method of ISO 3741: 1988. Levels are shown in dB with a 
standard reference of 1 pW. 
Sound Pressure Levels in dB(A) refer to semi-hemispherical radiation (wall or floor mounted) at a distance of 3m from the front 
of the unit, with the fan operating at full speed; (add 3dBA or 3NC for units at an intersection of a wall, add 1dBA or 1NC for high 
level wall mounted units). 

 
 
 
 
 

 

 
 

TEMPERATURE CONTROL (Do not set the controller below 8°C.)

 

 

The SET temperature is factory set at 12

C. 

 
The digital display normally displays the return air temperature. 
 

To change the SET temperature

, press and hold down the SET button. If no 

alarms acti

ve, the ‘St1’ label appears and the current value is shown on the screen 

and will flash. 
  

To change the Setpoint value

, press ▲ and ▼ keys within 60 seconds.  

The display will revert to the return air temperature after 60 seconds.  
 
The fitted de-ice thermostat will activate a de-ice cycle when there is a build up of 
ice on the evaporator coil. 
 
Cellarators will only heat a room if the electric heater option is fitted.  
 

WARNING  

The following actions could damage your system: 

1. 

Switching the unit OFF and ON quickly

 

2. 

Setting the unit to HEAT and then back to COOL quickly

 

NB: 

Allow at least 3 minutes between the above actions.  

 
 
 
 

TEV LTD, ARMYTAGE ROAD, BRIGHOUSE, WEST YORKSHIRE, HD6 1QF. 

 + 44 (0) 1484 405600 

 +44 (0) 1484 405620 

 [email protected] 

www.marstair.com

TEL:

FAX:

EMAIL:

WEB: 

CXE(A) ELECTRONIC COOLING SYSTEM CONTROLS 

 

SOUND POWER AND SOUND PRESSURE LEVELS 

Summary of Contents for Marstair 56500002

Page 1: ...Safe Working practices 2 These units contain live electrical components moving parts and refrigerant under pressure Always site out of reach of children and protect from vandalism 3 The data plate on...

Page 2: ...17 5 17 5 39 39 124 422 5 70 845 888 124 888 Fixing centres Fixing centres 320 96 MIN 500 FOR SIDE ACCESS 483 20 X Interconnecting Wiring Z1 Suction Z2 Liquid Expansion SIDE VIEW Wall mounted X Z1 Z2...

Page 3: ...50 CKA 70 A 760 760 860 B 256 256 307 C 552 552 660 D 330 330 370 E 290 290 340 F 510 510 630 G 50 50 50 H 85 85 85 J 70 70 70 WEIGHT 35Kg 42Kg 56Kg Valve Size LIQUID upper 1 4 1 4 3 8 Valve Size SUC...

Page 4: ...uring that it is square and level 6 Remove the drain tray then fit the drain stub nut gasket Refit the drain tray NITROGEN CHARGE The unit contains a small charge of dry nitrogen which should be disch...

Page 5: ...ipe Size OD To calculate the total equivalent length the equivalent lengths of all fittings in a pipe run must be added to the actual length of pipe in the run these are the fittings most likely to be...

Page 6: ...mating surfaces e Sight glasses and filter driers are not necessary but if required should be fitted between the outdoor unit liquid shut off valve and the expansion device EVACUATING DO NOT RELEASE...

Page 7: ...ee page 2 Cables MUST be size compatible with the recommended system fuse FUSES SYSTEM COOL ONLY WITH ELECTRIC HEATER 1PH 3PH 1PH 3PH CX E A30 CKA35 16A 16A CX E A50 CKA35 20A 20A CX E A50 CKA50 20A 2...

Page 8: ...5 2 83 2 15 3 25 3 0 CX E A 50 CKA 50 3 50 2 45 3 25 3 0 CX E A 70 CKA 70 4 62 3 24 3 25 3 0 OPTIONAL KITS PART NUMBER DESCRIPTION 55900700 3kW heater CXA only 55900701 Digital temperature display CXA...

Page 9: ...dd 1dBA or 1NC for high level wall mounted units TEMPERATURE CONTROL Do not set the controller below 8 C The SET temperature is factory set at 12 C The digital display normally displays the return air...

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